Implement framework for custom modules and out of the box custom modules as well. (#213)

* Create declarative module scaffolding

* Added ram module (WIP)

* Updates to options, styling and more.

* Added function for styling custom modules.

* Added utility functions and cleaned up code

* Type and fn name updates.

* Update module utils to handle absent values.

* Added icon color in style2 that was missing.

* Linted utils.ts

* Add CPU module and update RAM module to use /proc/meminfo.

* Added disk storage module.

* Consolidate code

* Added netstat module and removed elements from systray default ignore list.

* Added keyboard layout module.

* Fix hook types and move module to customModules directory

* Added updates modules.

* Spacing updates

* Added weather module.

* Added power menu and power module in bar. Increased update default interval to 6 ours.

* Updated styling of bar buttons, made power menu label toggleable, etc.

* Consolidate code and add dynamic tooltips based on data being used.

* Make default custom mogules matugen compatible

* Update base theme

* Fix custom module background coloring

* Remove testing opacity.

* Update themes to account for new modules

* Update nix stuff for libgtop (Need someone to test this)

* Update nix

* Update fractions to multiplications

* Move styling in style directory

* Implement a polling framework for variables that can dynamically adjust polling intervals.

* Netstat module updates when interface name is changed.

* Readme update

scss/style/osd/index.scss

@@ -1,11 +1,11 @@
 .indicator {
   * {
-    font-size: $font-size * $osd-scaling/100;
+    font-size: $font-size * $osd-scaling * 0.01;
   }
 
   .osd-container {
     margin: $osd-margins;
-    opacity: $osd-opacity/100;
+    opacity: $osd-opacity * 0.01;
   }
 
   .osd-label-container {
@@ -52,7 +52,7 @@
       }
 
       block {
-        border-radius: $osd-radius/2;
+        border-radius: $osd-radius * 0.5;
 
         &.empty {
           background: $osd-bar_empty_color;